<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="./OL_SDK/include-openlayers-local.js"></script>
    <script src="./libs/gaode.js"></script>
    <script src="./utils/setCanvasStyle.js"></script>
</head>

<body>
    <div id="map">
    </div>
    <script>
        var map = new ol.Map({
            target: "map",
            layers: [gaode],
            view: new ol.View({
                projection: 'EPSG:4326',
                center: [114.30, 30.50],
                zoom: 4
            })
        })
        /* Feature-Source-Layer-Map */
        /* 记忆 */
        /* 点要素 */
        /* style */
        
        // const style = new ol.style.Style({
        //     /* fill,stroke */
        //     image: new ol.style.Circle({
        //         radius: 20,
        //         fill: new ol.style.Fill({
        //             color: "#333"
        //         })
        //     })
        // })
        
        /* canvas */
        const point = new ol.Feature({
            geometry: new ol.geom.Point([114.30, 30.50])
        })
        const source = new ol.source.Vector({
            features: [point]
        })
        const layer = new ol.layer.Vector({
            source,
            style: setCanvasStyle(map, 40)
        })
        map.addLayer(layer)
    </script>
</body>

</html>